The techniques of thermal analysis are used to determine the mode of decomposition of nickel carbonates doped by the method
of coprecipitation. Nickel carbonate prepared by this method is basic in nature with the stoichiometryxNiCO3·yNi(OH)2·zH2O. Isothermal Thermogravimetry was applied to determine the mechanism of decomposition. Rising temperature Thermogravimetry
(TG) and Differential Scanning Calorimetry (DSC) were used to study the effects of doping on the kinetics of the decomposition.
Doping was found to strongly influence the kinetics of the decomposition. The kinetics of thermal decomposition of the doped
carbonates were compared with conductivity studies. A compensation effect has been observed and is discussed, in the thermal
decomposition of the doped nickel carbonates.